X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_port.cc;h=9a7d3eeb27fdfee4a716671d35fcd7b1583e9780;hb=1db2be2fef7a70f5200bcd96a701f612bbd7ec52;hp=77f9a6cb439cf884c1e33cdbc30f6b32e03cacee;hpb=e0aaed6d65f160c328cb8b56d7c6552ee15d65e2;p=ardour.git diff --git a/libs/ardour/midi_port.cc b/libs/ardour/midi_port.cc index 77f9a6cb43..9a7d3eeb27 100644 --- a/libs/ardour/midi_port.cc +++ b/libs/ardour/midi_port.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2006 Paul Davis + Copyright (C) 2006 Paul Davis This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -21,17 +21,18 @@ #include "ardour/midi_port.h" #include "ardour/data_type.h" +#include "ardour/audioengine.h" using namespace ARDOUR; using namespace std; MidiPort::MidiPort (const std::string& name, Flags flags) - : Port (name, DataType::MIDI, flags) + : Port (name, DataType::MIDI, flags) , _has_been_mixed_down (false) + , _resolve_required (false) + , _input_active (true) { - // FIXME: size kludge (see BufferSet::ensure_buffers) - // Jack needs to tell us this - _buffer = new MidiBuffer (1024 * 32); + _buffer = new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI)); } MidiPort::~MidiPort() @@ -39,51 +40,71 @@ MidiPort::~MidiPort() delete _buffer; } - void -MidiPort::cycle_start (nframes_t nframes, nframes_t offset) +MidiPort::cycle_start (pframes_t nframes) { + Port::cycle_start (nframes); + _buffer->clear (); + assert (_buffer->size () == 0); - + if (sends_output ()) { jack_midi_clear_buffer (jack_port_get_buffer (_jack_port, nframes)); } } MidiBuffer & -MidiPort::get_midi_buffer (nframes_t nframes, nframes_t offset) +MidiPort::get_midi_buffer (pframes_t nframes) { if (_has_been_mixed_down) { - return *_buffer; + return *_buffer; } if (receives_input ()) { + + if (_input_active) { + + void* jack_buffer = jack_port_get_buffer (_jack_port, nframes); + const pframes_t event_count = jack_midi_get_event_count (jack_buffer); - void* jack_buffer = jack_port_get_buffer (_jack_port, nframes); - const nframes_t event_count = jack_midi_get_event_count(jack_buffer); - - assert (event_count < _buffer->capacity()); - - jack_midi_event_t ev; - - for (nframes_t i = 0; i < event_count; ++i) { + assert (event_count < _buffer->capacity()); - jack_midi_event_get (&ev, jack_buffer, i); + /* suck all relevant MIDI events from the JACK MIDI port buffer + into our MidiBuffer + */ - // i guess this should do but i leave it off to test the rest first. - //if (ev.time > offset && ev.time < offset+nframes) - _buffer->push_back (ev); + for (pframes_t i = 0; i < event_count; ++i) { + + jack_midi_event_t ev; + + jack_midi_event_get (&ev, jack_buffer, i); + + if (ev.buffer[0] == 0xfe) { + /* throw away active sensing */ + continue; + } + + /* check that the event is in the acceptable time range */ + + if ((ev.time >= (_global_port_buffer_offset + _port_buffer_offset)) && + (ev.time < (_global_port_buffer_offset + _port_buffer_offset + nframes))) { + _buffer->push_back (ev); + } else { + cerr << "Dropping incoming MIDI at time " << ev.time << "; offset=" + << _global_port_buffer_offset << " limit=" + << (_global_port_buffer_offset + _port_buffer_offset + nframes) << "\n"; + } + } + + } else { + _buffer->silence (nframes); } - - if (nframes) { - _has_been_mixed_down = true; - } - + } else { - _buffer->silence (nframes, offset); + _buffer->silence (nframes); } - + if (nframes) { _has_been_mixed_down = true; } @@ -91,53 +112,104 @@ MidiPort::get_midi_buffer (nframes_t nframes, nframes_t offset) return *_buffer; } - + void -MidiPort::cycle_end (nframes_t nframes, nframes_t offset) +MidiPort::cycle_end (pframes_t /*nframes*/) { -#if 0 + _has_been_mixed_down = false; +} - if (sends_output ()) { - /* FIXME: offset */ +void +MidiPort::cycle_split () +{ + _has_been_mixed_down = false; +} - // We're an output - copy events from source buffer to Jack buffer - - void* jack_buffer = jack_port_get_buffer (_jack_port, nframes); - - jack_midi_clear_buffer (jack_buffer); - - for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) { - const Evoral::Event& ev = *i; +void +MidiPort::resolve_notes (void* jack_buffer, MidiBuffer::TimeType when) +{ + for (uint8_t channel = 0; channel <= 0xF; channel++) { + + uint8_t ev[3] = { ((uint8_t) (MIDI_CMD_CONTROL | channel)), MIDI_CTL_SUSTAIN, 0 }; + + /* we need to send all notes off AND turn the + * sustain/damper pedal off to handle synths + * that prioritize sustain over AllNotesOff + */ - // event times should be frames, relative to cycle start - assert(ev.time() >= 0); - assert(ev.time() < nframes); - jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size()); + if (jack_midi_event_write (jack_buffer, when, ev, 3) != 0) { + cerr << "failed to deliver sustain-zero on channel " << channel << " on port " << name() << endl; } - } -#endif - _has_been_mixed_down = false; + ev[1] = MIDI_CTL_ALL_NOTES_OFF; + + if (jack_midi_event_write (jack_buffer, 0, ev, 3) != 0) { + cerr << "failed to deliver ALL NOTES OFF on channel " << channel << " on port " << name() << endl; + } + } } void -MidiPort::flush_buffers (nframes_t nframes, nframes_t offset) +MidiPort::flush_buffers (pframes_t nframes) { - /* FIXME: offset */ - if (sends_output ()) { - + void* jack_buffer = jack_port_get_buffer (_jack_port, nframes); + if (_resolve_required) { + /* resolve all notes at the start of the buffer */ + resolve_notes (jack_buffer, 0); + _resolve_required = false; + } + for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) { - const Evoral::Event& ev = *i; - // event times should be frames, relative to cycle start - assert(ev.time() >= 0); - assert(ev.time() < (nframes+offset)); - if (ev.time() >= offset) { - jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size()); + + const Evoral::MIDIEvent ev (*i, false); + + // event times are in frames, relative to cycle start + + assert (ev.time() < (nframes + _global_port_buffer_offset + _port_buffer_offset)); + + if (ev.event_type() == LoopEventType) { + resolve_notes (jack_buffer, ev.time()); + continue; + } + + if (ev.time() >= _global_port_buffer_offset + _port_buffer_offset) { + if (jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size()) != 0) { + cerr << "write failed, drop flushed note off on the floor, time " + << ev.time() << " > " << _global_port_buffer_offset + _port_buffer_offset << endl; + } + } else { + cerr << "drop flushed event on the floor, time " << ev + << " to early for " << _global_port_buffer_offset + _port_buffer_offset << endl; } } } } +void +MidiPort::transport_stopped () +{ + _resolve_required = true; +} + +void +MidiPort::realtime_locate () +{ + _resolve_required = true; +} + +void +MidiPort::reset () +{ + Port::reset (); + delete _buffer; + _buffer = new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI)); +} + +void +MidiPort::set_input_active (bool yn) +{ + _input_active = yn; +}